Right-click the ArduinoCtrl C# Script and select Open C# Project. This opens the script in Visual Studio so that you can edit the code.
In the Visual Studio window, copy and paste the C# code from below into the ArduinoCtrl file. Then, Save the file.
// SPDX-FileCopyrightText: 2022 Liz Clark for Adafruit Industries
//
// SPDX-License-Identifier: MIT
using System.Collections;
using System.Collections.Generic;
using System.IO.Ports;
using UnityEngine;
using UnityEngine.UI;
public class arduinoCtrl : MonoBehaviour
{
// replace with your board's COM port
SerialPort stream = new SerialPort("COM52", 9600);
public Transform t;
void Start()
{
stream.Open();
}
void Update()
{
Vector3 lastData = Vector3.zero;
string UnSplitData = stream.ReadLine();
print(UnSplitData);
string[] SplitData = UnSplitData.Split('|');
float AccX = float.Parse(SplitData[1]);
float AccY = float.Parse(SplitData[2]);
float AccZ = float.Parse(SplitData[3]);
lastData = new Vector3(AccX, AccY, AccZ);
t.transform.rotation = Quaternion.Slerp(t.transform.rotation, Quaternion.Euler(lastData), Time.deltaTime * 2f);
}
}
Update the SerialPort object with your Arduino board's port name. You can find this information in the Arduino IDE under Tools - Port.
stream = new SerialPort("COM19", 9600);
In the main Unity project window, click on Edit and then Project Settings... Click on Player and scroll down to the Configuration settings under Other Settings. Change the Api Compatibility Level* to .NET Framework. This allows all of the expected Unity Visual Studio libraries to work as expected in the C# script.
In the Asset window, drag the ArduinoCtrl file to the 3D object in the Hierarchy window. You'll see the ArduinoCtrl script appear in the object's Inspector window.
In the T box, click on and select your 3D object from the list. This applies the script to the object to control its rotational movement.
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